Abstract:
The invention relates to a controllable valve, particularly for delivering a pulsed flow of fluid. It comprises a valve body (10); a valve seat (12) dividing the inside of the body into an inlet chamber (14) and an outlet chamber (16); a valve shutter element (22) capable of moving; an actuator (24) comprising a stationary control part (26) for receiving control signals and a moving part (28); first rigid means of connection (30) for connecting the said moving part of the actuator (28) to the said shutter element (22); a mechanical stop (40′); a member (38) that can be compressed under the effect of a force applied to it, comprising a first end secured to the said mechanical stop; and second rigid means (36′) for dynamically connecting one of the faces of the said shutter element (22b) to the second end of the said compressible member (38).
Abstract:
The invention relates to a method for melting vitrifiable materials in a low-capacity oven, wherein at least part of the melting energy is supplied by two oxy-burners projecting into the melting chamber through the upstream wall and arranged on opposite sides of a vertical plane in which a longitudinal axis of the melting chamber is situated, in such a way as to create two flames, the respective injection axes thereof crossing at a distance from the upstream wall, between ⅓ and ¾ of the length L of the melting chamber.
Abstract:
The invention relates to a burning method carried out in furnace provided with energy recovering means and burners, wherein a part of burners are embodied in the form of aero-combustible burners and the other part thereof are embodied in the form of oxy-combustible burners which are placed under the air ducts of the aero-combustible burners and carry out a staged combustion method.
Abstract:
Methods and apparatus for controlling the operation of a burner used for heating liquid glass feeders of a glass furnace. A burner is supplied with a fuel and oxygen. An additional gas is injected so that the sum of the oxygen flow, the fuel flow and the additional gas flow is greater than a minimum cooling flow for the burner.